Eubank EAA1020A (C)
Bard W18AA
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air20"8"20"12"19.88"7.88"19.88"11.88"36.75"33.3"74.563"74.563"17.25"17.125"1.875"2.183"20.625"20.56"32.063"32.06"Supply AirReturn AirSupply AirReturn Air
OPENING MATCH

Your openings match up but double check the cabinet surroundings. Over time equipment coils have gotten larger for better efficiency and cabinet dimensions have changed.

Match Eubank EAA1020A (C) Bard W18AA Difference
Unit height74.563"74.563"0"
Unit depth17.25"17.125"-0.125"
Supply Air20" x 8"19.88" x 7.88"-0.12" x -0.12"
Return Air20" x 12"19.88" x 11.88"-0.12" x -0.12"
Distance between Supply and Return20.625"20.56"-0.065"
Distance from Return to bottom32.063"32.06"-0.003"
Mismatch Eubank EAA1020A (C) Bard W18AA Difference
Unit width36.75"33.3"-3.45"
Unit weight337 lbs325 lbs-12 lbs
Distance from the top to Supply1.875"2.183"+0.308"